This adapter is also compatible with the original version of the DS. The GBA SP AC adapter comes with the package to recharge its lithium-ion battery, something previous Game Boys did not have (they usually used commercially available batteries). This makes using special cartridges, such as the Game Boy Camera and Kirby Tilt 'n' Tumble, more difficult. The slot for cartridges has been moved to the bottom of the system, facing down. However, the casing is made from a different material, making it more prone to scratches than previous Game Boy systems. The clamshell (or laptop design) protects the screen from scratches and dust, reminiscent of two-screen Game & Watch units. This model of the Game Boy can play all Game Boy cartridges including Game Boy, Game Boy Color, and Game Boy Advance carts. The GBA SP is slightly more than half the size of the GBA when closed and roughly the height of Nintendo's Game Boy Color when open. A red SP with a circle with an M in it was created, modeled after Mario's cap it also came in a bundle that included the game Mario Vs. An orange and red version was made as a prize for a speed run competition for Metroid Zero Mission. A limited-edition backlit edition exists. A special Pokémon Emerald pack contained a limited edition Green Rayquaza SP and the Emerald game. In September 2005, a Blue edition was sold through Best Buy. In 2003, Toys 'R' Us sold an exclusive gold edition (without any Zelda symbols) in the US starting on Black Friday of that year, initially with a Super Mario Advance 4 game. A limited gold edition with a Triforce and the Hyrule Royal Family crest was available in Europe which included a copy of The Legend of Zelda: The Minish Cap. Onyx, Flame, Platinum Silver, Cobalt Blue, Pearl Pink, Pearl Blue, Graphite, Midnight Blue, Charizard Fire Red, Torchic Orange, Venusaur Leaf Green, NES classic design, and Pikachu Yellow. Main article: List of Game Boy colors and styles § Game Boy Advance SP

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